From 88be24efa2ee67041a7e28151196dd3786f3b63f Mon Sep 17 00:00:00 2001
From: Joseph Walton-Rivers <joseph@walton-rivers.uk>
Date: Thu, 23 Jun 2022 23:14:22 +0100
Subject: [PATCH] make a start on platform APIs
---
fggl/CMakeLists.txt | 3 ++
fggl/platform/CMakeLists.txt | 3 ++
fggl/platform/linux/CMakeLists.txt | 7 +++
fggl/platform/linux/fonts.cpp | 34 +++++++++++++++
include/fggl/platform/linux/paths.hpp | 63 +++++++++++++++++++++++++++
5 files changed, 110 insertions(+)
create mode 100644 fggl/platform/CMakeLists.txt
create mode 100644 fggl/platform/linux/CMakeLists.txt
create mode 100644 fggl/platform/linux/fonts.cpp
create mode 100644 include/fggl/platform/linux/paths.hpp
diff --git a/fggl/CMakeLists.txt b/fggl/CMakeLists.txt
index 4e91e98..baa8948 100644
--- a/fggl/CMakeLists.txt
+++ b/fggl/CMakeLists.txt
@@ -85,6 +85,9 @@ add_subdirectory(phys/bullet)
# Debug backend
add_subdirectory(debug)
+# platform integrations
+add_subdirectory(platform)
+
##
# begin windows support
##
diff --git a/fggl/platform/CMakeLists.txt b/fggl/platform/CMakeLists.txt
new file mode 100644
index 0000000..5895d7d
--- /dev/null
+++ b/fggl/platform/CMakeLists.txt
@@ -0,0 +1,3 @@
+if ( CMAKE_SYSTEM_NAME MATCHES "Linux" )
+ add_subdirectory(linux)
+endif()
\ No newline at end of file
diff --git a/fggl/platform/linux/CMakeLists.txt b/fggl/platform/linux/CMakeLists.txt
new file mode 100644
index 0000000..baafc29
--- /dev/null
+++ b/fggl/platform/linux/CMakeLists.txt
@@ -0,0 +1,7 @@
+find_package(Fontconfig)
+target_link_libraries(fggl PRIVATE Fontconfig::Fontconfig)
+
+target_sources( fggl
+ PRIVATE
+ fonts.cpp
+)
\ No newline at end of file
diff --git a/fggl/platform/linux/fonts.cpp b/fggl/platform/linux/fonts.cpp
new file mode 100644
index 0000000..49db2f8
--- /dev/null
+++ b/fggl/platform/linux/fonts.cpp
@@ -0,0 +1,34 @@
+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Created by webpigeon on 23/06/22.
+//
+
+#include <fontconfig/fontconfig.h>
+
+namespace fggl::platform::Linux {
+
+ void get_font() {
+ /* FcConfig *config = FcInitLoadConfigAndFonts();
+ FcPattern* pat = FcPatternCreate();
+ FcObjectSet* os = FcObjectSetBuild(FC_FAMILY, FC_STYLE, FC_WEIGHT, FC_SLANT, FC_PIXEL_SIZE, FC_SIZE, nullptr);
+ FcFontSet* fs = FcFontList(config, pat, os);
+
+ if ( fs ) {
+ FcFontSetDestroy(fs);
+ }*/
+ }
+
+} // namespace fggl::platform::linux
\ No newline at end of file
diff --git a/include/fggl/platform/linux/paths.hpp b/include/fggl/platform/linux/paths.hpp
new file mode 100644
index 0000000..6a66d5f
--- /dev/null
+++ b/include/fggl/platform/linux/paths.hpp
@@ -0,0 +1,63 @@
+/*
+ * This file is part of FGGL.
+ *
+ * FGGL is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * FGGL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with FGGL.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+//
+// Low-Level Linux-specific path management
+// Created by webpigeon on 23/06/22.
+// see https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
+//
+
+#ifndef FGGL_PLATFORM_LINUX_PATHS_HPP
+#define FGGL_PLATFORM_LINUX_PATHS_HPP
+
+#include <filesystem>
+#include <array>
+
+namespace fggl::platform::Linux {
+
+ constexpr const char* ENV_USER_CONFIG = "XDG_CONFIG_HOME";
+ constexpr const char* EVN_USER_DATA = "XDG_DATA_HOME";
+ constexpr const char* ENV_USER_CACHE = "XDG_CACHE_HOME";
+
+ constexpr const char* ENV_DATA_DIRS = "XDG_DATA_DIRS";
+ constexpr const char* ENV_CONFIG_DIRS = "XDG_CONFIG_DIRS";
+
+ // fallback user paths defined in the XDG spec
+ constexpr const char* DEFAULT_USER_CONFIG = "~/.config";
+ constexpr const char* DEFAULT_USER_DATA = "~/.local/share";
+ constexpr const char* DEFAULT_USER_CACHE = "~/.cache";
+
+ // fallback search paths defined in the XDG spec
+ constexpr const std::array<const char*, 2> DEFAULT_DATA_DIRS = {"/usr/local/share/", "/usr/share/"};
+ constexpr const std::array<const char*, 1> DEFAULT_CONFIG_DIRS = {"/etc/xdg"};
+
+ // search routines for finding data and configuration files
+ std::filesystem::path locate_data(const std::string& base, const std::filesystem::path& relPath);
+ std::filesystem::path locate_config(const std::string& base, const std::filesystem::path& relPath);
+
+ // helper functions for getting file pointers
+ FILE* open_user_config(std::string& base, const std::filesystem::path& relPath);
+ FILE* open_user_config_rw(std::string& base, const std::filesystem::path& relPath, bool create = true);
+
+ FILE* open_user_cache(std::string& base, const std::filesystem::path& relPath);
+ FILE* open_user_cache_rw(std::string& base, const std::filesystem::path& relPath, bool create = true);
+
+ FILE* open_user_data(std::string& base, const std::filesystem::path& relPath);
+ FILE* open_user_data_rw(std::string& base, const std::filesystem::path& relPath, bool create = true);
+
+ // game data is always read only
+ FILE* open_game_data(std::string& base, const std::filesystem::path& relPath);
+}
+
+#endif //FGGL_PLATFORM_LINUX_PATHS_HPP
--
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